reactos/ntoskrnl/ke/amd64/boot.S

   1 /*
   2  * FILE:            ntoskrnl/ke/i386/boot.S
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PURPOSE:         FreeLDR Wrapper Bootstrap Code and Bootstrap Trampoline
   5  * PROGRAMMERs:     Alex Ionescu (alex@relsoft.net)
   6  *                  Thomas Weidenmueller <w3seek@reactos.org>
   7  */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include <asm.h>
  12 .intel_syntax noprefix
  13 .code64
  14
  15 /* GLOBALS *******************************************************************/
  16
  17 .bss
  18 .align 16
  19
  20 /* Kernel Boot Stack */
  21 .globl _P0BootStack
  22 .space KERNEL_STACK_SIZE
  23 _P0BootStack:
  24
  25 /* Kernel Double-Fault and Temporary DPC Stack */
  26 .globl _KiDoubleFaultStack
  27 .space KERNEL_STACK_SIZE
  28 _KiDoubleFaultStack:
  29
  30 /* FUNCTIONS *****************************************************************/
  31
  32 .text
  33
  34 /**
  35  * VOID
  36  * KiSetupStackAndInitializeKernel(
  37  *     IN PKPROCESS InitProcess,               <rsp + 0x08, rcx>
  38  *     IN PKTHREAD InitThread,                 <rsp + 0x10, rdx>
  39  *     IN PVOID IdleStack,                     <rsp + 0x18, r8>
  40  *     IN PKPRCB Prcb,                         <rsp + 0x20, r9>
  41  *     IN CCHAR Number,                        <rsp + 0x28>
  42  *     IN PLOADER_PARAMETER_BLOCK LoaderBlock) <rsp + 0x30>
  43  */
  44 .globl _KiSetupStackAndInitializeKernel
  45 .func KiSetupStackAndInitializeKernel
  46 _KiSetupStackAndInitializeKernel:
  47
  48     /* Save current stack */
  49     mov rsi, rsp
  50
  51     /* Setup the new stack */
  52     mov rsp, r8
  53     sub rsp, 0x300 // FIXME
  54
  55     /* Copy stack parameters to the new stack */
  56     sub rsp, 0x38
  57     mov rdi, rsp
  58     movsq
  59     movsq
  60     movsq
  61     movsq
  62     movsq
  63     movsq
  64     movsq
  65
  66     jmp _KiInitializeKernelAndGotoIdleLoop
  67
  68 .endfunc